import java.util.Scanner;

public class Test4 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int i = scanner.nextInt();
        //装箱
        Integer ij = Integer.valueOf(i);
        //拆箱
        int j = ij.intValue();
        //自动装箱
        int a = 66;
        Integer b = a;
        Integer c = (Integer) a;
        //自动拆箱
        int ii = b;
        int k = (int) c;
    }
}
